Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Elizabeth Kozak, MD

Works at hospitals in Grand Rapids, MI · Greenville, MI · Michigan

Summary

Dr. Elizabeth Kozak, MD is an internal medicine doctor at 3200 Eagle Park Dr NE, Suite 102, Grand Rapids, MI 49525. Phone: (616) 285-9090. Accepts Medicare assignment. In 2024, Elizabeth Kozak had 191 Original Medicare patients and 871 services. NPI 1811076805. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3200 Eagle Park Dr NE, Suite 102, Grand Rapids, MI 49525 · Directions (2 more locations)
  • Phone: (616) 285‑9090
  • Medicare: Accepts Medicare assignment
  • Hospitals: Spectrum Health, Spectrum Health United Hospital
  • Group practice: Center for Physical Rehabilitation and Therapy LP (+2 more)
  • Medical school: University Of Cincinnati College Of Medicine · graduated 1988 (38 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elizabeth Kozak, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Elizabeth Kozak accept Medicare assignment?
Yes. Medicare's clinician data says Elizabeth Kozak accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Elizabeth Kozak see?
In 2024, CMS data shows 191 Original Medicare patients and 871 services for Elizabeth Kozak. This counts Original Medicare only and measures volume, not quality.
What is Elizabeth Kozak's NPI number?
1811076805. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Elizabeth Kozak, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients191
Services billed to Medicare871
Different services or procedures27
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Assessment of emotional or behavioral problems (96127)243 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)159 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)116 services
  4. Annual depression screening, 5 to 15 minutes (G0444)95 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)68 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol70%
  • Arthritis54%
  • Anxiety27%
  • Chronic kidney disease27%
  • Osteoporosis24%

Hospitals where Elizabeth Kozak works

Medicare's Facility Affiliation Data lists Elizabeth Kozak at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038
  • Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 230035

Practice locations

Addresses where Elizabeth Kozak is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elizabeth Kozak as a member of these groups (CMS data updated October 2, 2026).

  • Center for Physical Rehabilitation and Therapy LP369 clinicians in the group
  • Center for Physical Rehabilitation Inc357 clinicians in the group
  • Internal Medicine of West Michigan PLLC6 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

All internal medicine doctors in Grand Rapids →

Other clinicians in Center for Physical Rehabilitation and Therapy LP

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Cincinnati College Of Medicine
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811076805
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians